Rayon spinning cage



July 4, 1944. J. P; TARBox RAYON SPINNING CAGE 2 Sheets-Sheet 1 inurl. I M

.m r mi Filed March 15, 1941 LIIIII. lllll I1 July 4, 1944. J. P. TARBox Y v- 2,352,863

l RAYON SPINNING CAGE Filed March `'15, 1941 2 SheetSFSheet 2 INVENTOR Patented July 4, 1944 assasss RAYON SPINNING cada John P. Tarbox, Philadelphia, Pa., assigner, by

mesne assignments, to Industrial Rayon Corporation, a corporation of Delaware Application March 15. 1941, Serial No. 383.628

8 Claims.

The invention relates to devices for treating threads, filaments and the like.

a plurality of groups of bars, the bars of the different groups alternating with each other and forming together a cage upon which' vthe thread or the like to be treated is wound and advanced in axial direction in generally helical windings, the treatment of the filament or the like taking place during these movements.

lAmong the objects of the invention is the construction of a reel of the type referred to, which More particu-A larly, the invention relates to a reel comprisingv is simpleand rugged in construction, and which y supports and advances the thread or the like without undesirable stretching or slackening.

Certain objects of the invention are outstandingly achieved by separating the means for supporting the bars and moving them in circumferential direction from the means for imparting to the bars a relative axial movement.

Further objects, features and advantages of the invention will become apparent from the following-description of one embodiment of the invention when read together with the attached drawings:

In the drawings,

Fig. 1 is a diagrammatic vertical section through a reel according to one embodiment of the invention;

Fig. 2 isv a fragmentary horizontal section along line 2-2 of Fig. 1;

each of the hub members is provided with generally radially extending spokes or links I5. The spokes or-links I8 are of resilient material such assteel so that they may be flexibly held substantially at their points of attachment to the -1 hub members, and are journalled by their outer free ends at I'I. to bars I8, which `latter extend generally parallel to the shaft I3. The bars I8 form together a generally'cylindrical cage. The normal form of the spokes or links I6 is about that shown in the upper part of Fig. 1, while the spokes are under stress in the form shown'in Fig. 1, below`the shaft Il, and in Fig. 2.

A second pair of hub members 2l are rotatably supported on the outside of the supporting portion II and of the one supporting portion I2 by means of antifriction bearings 2 I. The members 25 are likewise provided with radially extending spokes or links 22 which are connected at 2l to a second set of bars 24. The bars 24 form together a second generally cylindrical cage. The spokes or links 22 need not be of resilient material but these spokes and the connections 22 may be rigid.

The axis 25 of the shaft I: and the axis ,of rotation 26 of the hub members 25 are arranged parallel to but spaced from each other in the plane of Fig. 2. As the outer diameter of the individual cages formed, respectively, by the bars I8 and 2e is about the same, the eccentricity of the axes 25 and 28 results In a projection of the bars I8 outwardly beyond the bars 24 for about half the circumference of the entire drum structure, whereas, for the other half of the circumference, the bars 24 project outwardly beyond the bars I5.

l The shaft I3 is connected through gears 21, 22 and a shaft 29 to a source of power which is not shown. The hub members I4 and 25 `are connected by means of discs l0, which latter are provided with pins 3i and 22. Each pin 2| engages one hub member I4, and the appertaining pin 32 the adjacent hub member 20. The distance between the axes of the pins 2| and l2 is equal to the eccentricity of the axes 25 and 28 of the two individual cages. A pair of such driving members ill) between each two adjacent hub members IS and 20 is shown in the embodiment, but

any number of such driving members will serve the purpose.

A disc member 33 is rotatably supported such as by an antifriction bearing 34 on the supporting member II.

and the two axes 25 and 25 are arranged in the same vertical plane, as indicated in Figs. 1 and 2. The disc member 33 is driven at the same speed as the shaft I2 by means of .pinions 3l and 21 being rigidly connected to the ends of a. rotatably supported shaft I5, the pinion 35 engaging the gear wheel 21 and the pinion 2l engaging a toothed wheel 39 connected to disc member Il. The dimensions of the gears 21, 38, Il and 39 are such that the shaft l2 and the disc member 33 rotate in unison. 'I'he rounded on ends Il' of the bars Il are pressed against the surface 4l of the member `32 under the action of the resilient spokes or links I5.

The axis of rotation 35 of this disc member is inclined to the axis 25 of the shaft It The two bearings l2 are supported by a hollow structure 4|, 42, the portion 4I being perforated so as to allow the passage of 'drying air from its interior. 'I'he drying air is supplied to the struc- 44, 45, the eiective cross-section of which may be regulated by a valve 46. The ends ofthe bars il and 24 extend beyond the inner bearing memextended ends o1' the bars and the structure 4I are enclosed in a casing 41.

A pipe extends in a generally circular loop 48 and a generally helical loop 48 around the drum formedby the bars I8 and 24. A second pipe 50 likewise extends around a portion of the drum between the loops 48 and 49-of the other-pipe.

The two pipes are connected to a source of compressed air or gas and are provided with nozzles indicated at 5I through which the compressed air or gas is blown against the surface of the drum and toward the left-hand end of the drum.

52 and 53 are nozzles through which treating uids are dripped or sprayed upon the circum ference of the drum, and 54 is a basin for collecting the fluid after it drips or runs/off the drum, 55 is a thread, filament or the like which, after passing a guide 56, is wound upon the drum. On one-half of the circumference of the drum, the thread is supported by the bars i8 in half circular windings 51, which are inclined to the axes by the bars 24 on half circular windings 58 which extend perpendicular to said axes. At the other end of the drum, the thread is led away over a guiding role 59.

In operation, the thread or the like 55 is continuously fed at one end wound upon and moved along the drum in windings 5l, 58. The treating uid which would. of course, have the tendency to run straight down along the windings to the collecting basin or trough 54 and to be partly carried along with the thread toward the take-off end of the drum, is forced by the currents of air or gas emanating from the pipes 48, 49 and 50 to move in the opposite direction, that is, in coun'teriiow to the direction of the movement of the thread. Such counterflow is highly desirable for an eifective treatment of the thread or the like.

The method of and the means for creating the counterow between the thread or the like and the treating fluid are claimed in the inventors application Serial No. 411,312, Method of and device for treating threads and the like, filed September 18, 1941, which is a division of the present application.

The new device and the method of its operation are applicable ior many treatments of filaments or the like such as for the aftertreatment of freshly spun artificial fibres in any known process, for instance, the c uprammonium or viscose process.

The invention is, of course, not restricted to the specific embodiment shown in the application, but the invention is liable to many different embodiments, all of which are intended to be covered by the spirit of the language of the attached claims.A

What is claimed is: l. Device for continuously -treating threads, filaments, or the like; said device including a rotatable drum upon which the thread or the like is wound and advanced in the longitudinal direction of the drum in generally helical turns; the

ture 4I,.42 from a conduit 43 through a passage ber I2 so as to surround the portion 4I. Thesev 25, 26, whereas, on the other half of the cir-A cumference of the drum, the thread is supported circumferential portion of said drum being composedof two sets of bars, the barsof different sets alternating with each other; means for supporting the bars' rotatably about axes extending in the longitudinal direction of the drum, the axis of rotation forthe one set of bars being eccenv comprising a structure which is rotatably supported by a stationary part of the device, the axis of rotation for that structure being inclined and extending near to the axis of rotation of thel reciprocable bars; said reciprocable bars engaging and rotating with said structure.

2. Device for continuously treating threads, filaments, or Vthe like; said device including a rotatable drum upon which the thread or the like is wound and advanced in the longitudinal direction of the drum in generally helical turns; the circumferential portion of said drum being composed of two sets of bars, the bars of different sets alternating with each other; means for supporting the bars rotatably about axes extending in the longitudinal direction of the drum, .the axis of rotation for the one set of bars being eccentrically arranged to thev axis of rotation for the bars of the other set. so that the bars of each one set project radially outwardly for a portion of the' circumference of the drum beyond the bars of the other set; the supporting means for at least one set of bars being adapted to allow reciprocal composite movement of the bars in their general longitudinal direction; meansseparate from said supporting means adapted to reciprocate said reciprocably supported bars once during each rotation of the drum; said last-named means comprising a structure which is rotatably supported by a stationary part of the device, the axis of rotation for that structure being inclined to and intersecting the axis vof rotation of the reciprocable bars; said reciprocable bars engaging and n rotating with said structure.

3. Device for continuously treating threads, filaments, or the like, said device including a rotatable drum upon which the thread or the like is Wound and advanced in the longitudinal direction of the drum in generally helical turns; the circumferential surface of said drum being formed by twosets of bars, the bars of different sets alternating with each other; means for supporting the bars rotatably about axes extending in the longitudinal direction of the drum, the axis of rotation for the one set of bars being eccentrically arranged to the axis of rotation for the bars of the other set, so that the bars of each one set project radially outwardly for a'. portion of the circumference of the drum beyond the bars of the other set; at least one set of bars comprising a pair of link members for each bar, said members extending radially, the members of each pair being spaced from each other inthe longitudinal direction of the drum, each member having its outer end connected to one bar and the inner end to a central rotatable member; said link members being adapted to allow reciprocal composite movement of each bar of the respective set in its generally longitudinal direc# tion and transversely tov that direction so as to keep corresponding points -of adjacent bars of the same set always at about the same distance; means separate from said supporting means adapted to reciprocate said reciprocably supported bars,once during each rotation of the drum.

4. Device for continuously treating threads, filaments, or the like, said device including a rotatable drum upon which the thread or the like is wound and advanced in thev longitudinal direction ofthe drum in generally helical turns; the circumferential surface of said drum being formed by two sets of bars; the bars of different sets alternating with each other; means for supporting the bars rotatably about axes extending l spring means adapted to force thereciprocable bars in one direction; means separate from said supporting means adapted to move said reciprocably supported bars once during each rotation of the drum in the direction oppositely to the 4direction of said spring means; said moving means comprising a member which is supported by a stationary portion of the device and which nected to one bar and the inner end to a central rotatable member; means separate from said supporting means adapted to force said reciprocably supported bars once during eachv rotation of the drum in one direction against the action of said spring natured members while allowing thereafter the return of the bars under the action of said spring natured members.

6. Device for continuously treating threads,

filaments, or the like; said device including a rotatable drum upon which the thread or the like is wound and advanced in the longitudinal direction of the drum in .generally helical turns: the circumferential portion of said drum being composed oi. two se'ts of bars, the bars of diilerent sets alternating -with each other; means for supporting the bars rotatably about axes extending in the longitudinal direction of the drum, the axis of rotation for the one set of bars being 'eccentrically arranged to the axis of rotation fo the bars of the other set, so that the bars of eac one set project radially outwardly for a portion comprises a cam surface, said surface being in- -rotatable drum upon which the thread or the like is wound and advanced in the longitudinal direction of the drum in generally helical turns: said drum. comprising twosets of bars arranged aroundthe circumference of the drum the bars of di'erent sets alternating with each other:

means for supporting the bars rotatably about oi the circumference of the drum beyond the bars of the otherset: the supporting means for at least one set of bars being adapted to allow reciprocal composite movement of the .bars in their general longitudinal direction and in radiall direction; means separate fromsaid supporting means adapted to reciprocate said reciprocably supported bars once during each rotation of the drumsaid last-named means comprising a structure which is rotatably supported by a stationary part of the device, the axis of rotation for that structure being inclined to and intersecting the axis of rotation of the reciprocablel bars; said reciprocable bars engaging and rotating with said structure, the design and arrangement of the supporting means and of said means for imparting reciprocal movement to the bars being such that at about the middle of the movement ofteach bar in either direction the connecting points between the appertaining supporting means and the bar lie on a line perpendicular to the axis of rotation of thebar.

'1. In areel for storing and axially advancing filaments, threads or the like in a generally helicalI path about a central axis, a structure supaxes extending in the longitudinal direction ot ported rotatably about said axis and means for rotating said'structure, a plurality of bars adapted for carrying the nlaments or the like mounted about said axis on said structure to rotate therethe bars of each one set project radiaily-outleast one of said members of each pair being 'in the nature of a spring; said members extending radially, the members of each pair being spaced from each other in the longitudinal direction of the drum, eachmember having itsv outer end conwith, bar reciprocating means for axially moving said bars, .said reciprocating meansbeing arranged to rotate with said bars and with said structure about said axis.

8. Inl a reel for storing and axially advancing l' nlaments, `threads or the like in a generally helifilaments or the like, said cam means rotating with said support and said bars about said axis.

' JOHN P. TARBOX. 

